Q265GNH steel plate implementation standard: GB/T 4171-2008.
Delivery status of Q265GNH steel plate: delivered in hot-rolled, controlled-rolled or normalized state. […]

Q265GNH weathering steel: by adding a small amount of alloying elements such as Cu, P, Cr, Ni, etc., it forms a protective layer on the surface of the metal substrate to improve the atmospheric corrosion resistance of steel. […]

Weathering steel is made of ordinary carbon steel by adding a small amount of copper, nickel and other corrosion-resistant elements. […]

Q235NH, "Q" means the letter of yield pinyin, "235" means the yield strength is 235MPa, "NH" is the letter of weather resistance. […]

Q235NH belongs to weather-resistant structural steel and atmospheric corrosion-resistant steel plate. […]